Si9241 Vishay Intertechnology, Si9241 Datasheet

Si9241

Manufacturer Part Number

Si9241

Description

Manufacturer

Vishay Intertechnology

Datasheet

1.SI9241.pdf (4 pages)

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Description

The Si9241EY is a monolithic bus transceiver designed to

provide bidirectional serial communication in automotive

diagnostic applications.

The device incorporates protection against overvoltages

and short circuits to GND or V

protected and can be driven beyond the V

A fault output provides an active low in case of a short

circuit or an open load. In the event of an over temperature

condition, the output is immediately switched off and a fault

indicated. This condition can only be reset once the over

temperature condition is removed, and CS is toggled high.

Pin Configuration and Functional Block Diagram

Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70013.

Application Note AN602 may also be obtained via FaxBack, request document #70573.

FAULT

Single-Ended Bus Transceiver

S-49719—Rev. E, 27-Sep-96

Features

D Single-Ended Transceiver

D Survives Shorts and Transients on Automotive Bus

D Wide Power Supply Voltage Range

D ISO 9141 Compatible

D Open Drain Fault Output

Order Number:

Narrow Body

SO Package

Si9241EY

Top View

GND

. The transceiver pin is

voltage.

FAULT

Benefits

D Single-Wire Multiplexer Interface

D ISO Diagnosis Bus

For bi-directional communication, CS must be High for

“receive” and Low for “transmit”. If CS is Low, while IC

is receiving data, an incorrect fault signal will occur. To

inhibit the open load and short detect, tie CS and T

together.

The Si9241EY is built on the Siliconix BiC/DMOS

process. An epitaxial layer prevents latchup.

The RX output is capable of driving CMOS or

The Si9241EY is available in a space efficient 8-pin SO

package. It operates reliably over the automotive

temperature range (–40 to 125_C).

LSTTL load.

Detector

Fault

GND

Si9241EY

Applications

D Automobiles

D Trucks

D Tractors

–

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